Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). A high pressure drop evaporator (40) and a plurality of closely spaced fans (70) are disposed within compartment (120). The evaporator (40) is provided with a relatively high fin density heat exchanger coil providing a relatively high air side pressure drop through the evaporator. The increased flow resistance through the evaporator coupled with the plurality of closely spaced fans results in a substantially uniform evaporator outlet temperature profile across the length of the evaporator.

Abstract: A heat exchanger includes tubes and an inlet manifold to direct a first fluid into the tubes at a third direction. Heat is exchanged between the first fluid and a second fluid in the tubes. The heat exchanger also includes a distributor tube located within the inlet manifold. The distributor tube includes a short tube including a plurality of first orifices that direct the first fluid into the inlet manifold at a first direction, and a long tube including a plurality of second orifices that direct the first fluid into the inlet manifold at a second direction.

Abstract: A photocatalytic air purifier is disclosed. The photocatalytic purifier includes filter structures coated with a catalytic material such as titanium dioxide. One or more UV lamps are interposed between the filter structures. The catalytic layer reacts with airborne VOCs and bioaerosols when activated by the UV lamps to thereby oxidize the VOCs and destroy the bioaerosols. The photocatalytic air purifier does not need to be replaced or regenerated after a period of continuous usage. The photocatalytic purifier of the present invention substantially eliminates odors, VOCs, and bioaerosols from air directed through the fan coil. The photocatalytic air purifier includes a control system that optimizes operating costs. Because of these features, service, maintenance, and filter replacement are reduced to a minimum. At the same time, the well being of persons living in the space conditioned by the photocatalytic air purifier is improved.

Abstract: A dual refrigeration circuit watercooled chiller has its respective evaporators and condensers interconnected by waterboxes such that the first circuit tubes discharge into the respective waterbox and the flow of water then passes from the respective waterboxes to the respective evaporator/condenser tubes of the second circuit. Instrumentation is attached to the waterboxes to enable the measurement of the leaving temperature differential to provide improved control. Since the first and second circuit tubes are separate and independent, both serviceability and flexibility in design are substantially enhanced.

Abstract: The present invention relates to novel uses of peptide compounds that are agonists of the erythropoietin receptor (EPO-R). The invention also relates to methods of using such peptide compounds to treat disorders associated with insufficient or defective red blood cell production, including chemotherapy induced anemia. Pharmaceutical compositions, which comprise the peptide compounds of the invention, are also provided. Also provided are kits and articles of manufacture comprising such compounds.

Abstract: A grooming switch comprises plural input ports for receiving multi-time-slot input signals and plural output ports for forwarding multi-time-slot output signals. At least five switching stages alternate between time switching and space switching. The first stage is connected to the input ports, and the last stage is connected to the output ports. Each intermediate stage is connected to two other stages. Collectively, these stages perform compact superconcentration of the input signals, copying and distribution of the compact superconcentrated signals, and unicast switching of the distributed signals to form the output signals, resulting in a grooming switch that is rearrangeably non-blocking for arbitrary multicast traffic.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). An evaporator (40) and a plurality of spaced fans (70) are disposed in a forced draft arrangement within compartment (120) with flow baffle (150) disposed therebetween to provide increased flow resistance whereby a more uniform velocity profile is provided entering the evaporator.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). The flow of refrigerant through the coils (46) of evaporator (40) disposed in the compartment (120) to cool the airflow from the product display area of the refrigerated merchandiser.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). The flow of refrigerant through the coils (46) of evaporator (40) disposed in the compartment (120) to cool the airflow from the product display area of the refrigerated merchandiser.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). A high pressure drop evaporator (40) and a plurality of closely spaced fans (70) are disposed within compartment (120). The evaporator (40) is provided with a relatively high fin density heat exchanger coil providing a relatively high air side pressure drop through the evaporator. The increased flow resistance through the evaporator coupled with the plurality of closely spaced fans results in a substantially uniform evaporator outlet temperature profile across the length of the evaporator.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). A high pressure drop evaporator (40) and a plurality of closely spaced fans (70) are disposed within compartment (120). The evaporator (40) is provided with a relatively high fin density heat exchanger coil providing a relatively high air side pressure drop through the evaporator. The increased flow resistance through the evaporator coupled with the plurality of closely spaced fans results in a substantially uniform evaporator outlet temperature profile across the length of the evaporator.

Abstract: A grooming switch comprises plural input ports for receiving multi-time-slot input signals and plural output ports for forwarding multi-time-slot output signals. At least five switching stages alternate between time switching and space switching. The first stage is connected to the input ports, and the last stage is connected to the output ports. Each intermediate stage is connected to two other stages. Collectively, these stages perform compact superconcentration of the input signals, copying and distribution of the compact superconcentrated signals, and unicast switching of the distributed signals to form the output signals, resulting in a grooming switch that is rearrangeably non-blocking for arbitrary multicast traffic.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). A high pressure drop evaporator (40) and a plurality of closely spaced fans (70) are disposed within compartment (120). The evaporator (40) is provided with a relatively high fin density heat exchanger coil providing a relatively high air side pressure drop through the evaporator. The increased flow resistance through the evaporator coupled with the plurality of closely spaced fans results in a substantially uniform evaporator outlet temperature profile across the length of the evaporator.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). The flow of refrigerant through the coils (46) of evaporator (40) is arranged to configure the evaporator (40) as a “thermodynamically counterflow” heat exchanger.

Abstract: A heat transfer tube utilized in a condenser or an evaporator of a heat exchanger includes a plurality cavities to increase heat transfer. A plurality of substantially trapezoidal shaped substantially parallel ribs are formed by a first roll embossing step. A second roll embossing step is repeated at a different helix angle to slightly deform the ribs, creating a plurality of substantially parallel microgrooves and a cavity on the interior end of each microgroove. The cavities are substantially branched or substantially V-shaped and increase heat transfer.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). An evaporator (40) and a plurality of axially aligned transverse fans (70) are disposed in axially parallel juxtaposition within compartment (120). The use of transverse fans results in a substantially uniform evaporator outlet temperature profile across the length of the evaporator.

Abstract: A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). An evaporator (40) and a plurality of spaced fans (70) are disposed in a forced draft arrangement within compartment (120) with flow baffle (150) disposed therebetween to provide increased flow resistance whereby a more uniform velocity profile is provided entering the evaporator.

Abstract: A refrigerated merchandiser system (10) includes a compressor (20), a condenser (30), a display case (100) having an evaporator (40), an expansion device (50) and an evaporator pressure control device (60) connected in a closed refrigerant circuit via refrigerant lines (12, 14, 16 and 18). The evaporator pressure control device (60) operates to maintain the pressure in the evaporator at a predetermined pressure so as to maintain the temperature of the refrigerant expanding from a liquid to a vapor within the evaporator (40) in the range of about 27 degrees F to about 32 degrees F. The evaporator (40) has a fin and tube heat exchanger coil having a relatively high fin density of at least 5 fins per inch, and most advantageously in the range of 6 to 15 fins per inch.

Abstract: A refrigerated merchandiser system (10) includes a compressor (20), a condenser (30), a display case (100) having an evaporator (40), an expansion device (50), and an evaporator pressure control device (60) connected in a closed refrigerant circuit via refrigerant lines (12, 14, 16 and 18). The evaporator pressure control device (60) operates to maintain the pressure in the evaporator at a set point pressure so as to maintain the temperature of the refrigerant expanding from a liquid to a vapor within the evaporator (40) at a desired temperature. A controller (90) operatively associated with the evaporator pressure control device (60) maintains the set point pressure at a first pressure for the refrigerant equivalent to a first refrigerant temperature during a first refrigeration mode and at a second pressure for the refrigerant equivalent to a second refrigerant temperature about 2 to about 12 degrees warmer than the first temperature during a second refrigerant mode.